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Related Concept Videos

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Continuous Charge Distributions

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Related Experiment Video

Updated: May 22, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

Three-dimensional Dammann vortex array with tunable topological charge.

Junjie Yu1, Changhe Zhou, Wei Jia

  • 1Laboratory of Information Optics and Optoelectronics Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, China.

Applied Optics
|May 23, 2012
PubMed
Summary
This summary is machine-generated.

Researchers developed a 3D Dammann vortex array, a tunable 3D lattice of focused light vortices. This innovation enables precise control over topological charge for advanced optical applications.

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Preparation of Free-Surface Hyperbolic Water Vortices
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Last Updated: May 22, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
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Published on: February 1, 2017

Preparation of Free-Surface Hyperbolic Water Vortices
04:35

Preparation of Free-Surface Hyperbolic Water Vortices

Published on: July 28, 2023

Area of Science:

  • Optics and Photonics
  • Three-Dimensional Imaging and Manipulation

Background:

  • Vortices in optics are crucial for applications like optical trapping and information transmission.
  • Creating controllable 3D arrays of optical vortices presents significant challenges.

Purpose of the Study:

  • To introduce a novel 3D Dammann vortex array with tunable topological charge.
  • To demonstrate a method for controlling the topological charge of the 3D vortex array.

Main Methods:

  • Utilized a Dammann vortex grating (DVG) combined with a mirror system.
  • Experimentally implemented a 5×5×5 Dammann vortex array using a DVG, Dammann zone plate, and Dammann grating.
  • Tuned topological charge by adjusting mirror position and orientation to select different diffraction orders.

Main Results:

  • Successfully created a true 3D lattice of focused vortices.
  • Demonstrated tunable topological charge ranging from -2 to +2 with a step of +1.
  • The 3D Dammann vortex array exhibited controllable vortex properties at each lattice node.

Conclusions:

  • The proposed 3D Dammann vortex array offers a versatile platform for advanced optical manipulation.
  • Potential applications include 3D simultaneous optical manipulation, parallel vortex scanning microscopy, and information transmission.